How do I switch broadband in the UK?

Switching broadband in the UK used to mean awkward phone calls, retention scripts and the risk of paying two providers at once while you waited for one of them to let go. It's a lot calmer now. For most homes the heavy lifting happens behind the scenes, and your job is really just to choose well and check a few things before you start.

This guide walks the whole journey, not only the mechanism that moves the service across. We cover deciding it's worth switching, the pre-checks that spare you an unexpected exit charge, how long it all takes, what to expect on the day, keeping your phone number, and the slightly different situation when you're jumping from an older copper-based line up to full fibre.

To switch broadband in the UK, you usually sign up with the new provider and let them handle the move. Under One Touch Switch, you don't normally cancel the old service yourself, but you should still check contract end dates, installation needs, and any early termination charges before you start.

How do I switch broadband in the UK now?

The starting point is the easy bit. You choose a new provider and plan, sign up, and from there the move is largely coordinated for you. You don't have to act as the go-between, ferrying account numbers and cancellation requests between two companies who would rather you didn't leave.

The reason it's this smooth is a process called One Touch Switch, which has been the standard way to move home broadband and landline since 12th September 2024. You can read the detail on the One Touch Switch page, but the short version is that you contact only the new provider, and they handle the rest with the old one, including the cancellation.

That mechanism is genuinely useful, but it's only one part of switching well. A clean move on paper can still leave you worse off if you didn't check what you were leaving, what you're joining, or when the timing actually lands. The rest of this guide is about those decisions: the parts the automated process can't make for you.

Do I need to contact my old provider when I switch?

For most people, no. This is the single biggest change from how switching used to work. You don't phone your current provider to cancel, you don't sit through a retention call, and you don't risk a gap because two companies failed to talk to each other. Your new provider initiates the switch and arranges the closure of your old service as part of the same move.

There are a couple of situations where it's still worth a conversation with the old provider, though. If you're mid-contract, you may want to confirm the exact early termination charge before you commit. If you have a phone number you want to keep, it's worth flagging that early so nothing gets lost. And if your two providers sit on entirely different networks, your new provider will tell you whether a slightly different process applies.

Beyond those, the rule of thumb is simple. Talk to the provider you're joining, not the one you're leaving. Anything the old company genuinely needs to do should reach them through the switching process rather than through you.

What should I check before I start the switch?

A few minutes of checking before you sign up saves the most common switching regrets: a surprise charge, an install you weren't expecting, or a number you can no longer keep. None of this is complicated, and most of it lives on a recent bill or in your online account.

Run through this short list before you commit:

• Contract end date. Find out whether you're still inside your minimum term. Switching is always allowed, but leaving early can trigger a charge.
• Early termination charge. If you are mid-contract, get the figure. Then weigh it against what you gain by switching now rather than waiting.
• Installation type. A like-for-like move often needs no engineer. Moving to a new kind of line, such as full fibre, may need an install appointment and new equipment.
• The number you want to keep. If you use a landline number, decide now whether you want to port it, and tell the new provider when you sign up.
• What's actually available at your address. Speeds and line types vary street by street, so check before you pick a plan.

That last point is worth doing first, because it shapes everything else. You can check what's available at your address and start a switch on the Inspire broadband page, which tells you which line types and speeds your home can actually get rather than the headline figures from an advert.

How long does a broadband switch take?

Most switches complete within 10 to 14 working days from the point you sign up. That window covers the coordination between the two providers and any scheduling needed at your end. A like-for-like move on the same network tends to sit at the quicker end, while a switch that needs a new line or an engineer visit can take a little longer.

The timeline matters for one practical reason: you usually pick the switch date when you sign up, so you can avoid moving during a week of important calls or a house move. It's far easier to plan around a known date than to react to a surprise one.

If something does slip, you're not left to absorb the cost. Under Ofcom's automatic compensation scheme, you're owed £5.83 a day for a delayed switch that leaves you without service, £29.15 for each missed engineer appointment, and £9.33 a day if the start of a new service is delayed. You shouldn't have to chase it, as the credit is meant to be applied automatically, but it's worth knowing the figures so you can spot if it hasn't been.

What happens if I'm moving from FTTC to full fibre?

Moving from FTTC (fibre to the cabinet, the older service that runs the last stretch to your home over copper) to full fibre is the upgrade most people feel the difference from. It's also the switch most likely to involve a bit more than a flick of a switch, because a genuinely new line is being brought into the property.

In practice that usually means an engineer appointment to run the fibre and fit an ONT (the small box where the fibre terminates inside your home), plus a new router. None of this is your problem to organise beyond being in for the appointment, but it does mean the switch can take a little longer than a like-for-like move, and there may be a short period on the day while the new line is brought live.

The payoff is worth the small extra effort. Full fibre brings far higher and more consistent speeds, and a dramatic jump in upload, which is what makes video calls and cloud backups stop stuttering. Our full fibre guide explains exactly what changes and what to expect from the move.

Can I switch broadband if I'm still in contract?

Yes. You're always free to switch, even mid-contract. The thing to weigh up is the early termination charge, which is the amount your current provider can ask for when you leave before the minimum term is up. It's typically based on the months left to run, so it shrinks as you near the end of the contract.

Whether it's worth paying depends on the gap between what you have and what you'd move to. If you're escaping a slow or unreliable line, or a price rise has pushed your bill well above the market, the charge can pay for itself quickly. If you're close to the end of the term anyway, it often makes sense to time the switch for when the charge disappears.

One thing to watch for is a price rise during your contract, which can change the maths and, in some cases, give you a route to leave without penalty. If that's your situation, our help article on a broadband price rise mid-contract walks through your options.

What should I expect on switch day?

For a like-for-like move, switch day is usually quiet. The changeover happens behind the scenes, often with little or no downtime, and you may not notice the moment it flips. If your new provider sent fresh kit, you might need to swap the router over at the point the new service goes live, and they'll tell you when that is.

Where a new line or an engineer visit is involved, there's a bit more to it. Be in for the appointment window, keep the area around the entry point clear, and expect a short gap while the old service hands over to the new one. Once the new router is connected, give it a few minutes to settle before you judge the speeds.

A few small things make the day smoother. Have your new router and any account details to hand, restart everything once after the switch completes so your devices pick up the new connection cleanly, and run a quick wired speed test so you know what the line is actually delivering. If anything doesn't look right, a good provider will have a UK support team you can reach quickly rather than a queue that swallows your afternoon.

Frequently asked questions about switching broadband